Hi Freesurfers,
I am trying to analyze functional activity in individual subjects.
The structural constraint is a dACC label and the functional
constraint is positive activation at a specific timepoint (6 sec
after stimulus). I was just wondering what the numbers following the
"# of estimates per condition" row actually represented, and how I
could convert these to % signal change. I saw in an archived email
http://www.mail-archive.com/freesurfer@nmr.mgh.harvard.edu/msg00171.html
that someone mentioned taking those values, dividing by the baseline
offset value (row 4) and multiplying by 100 to get % signal change.
Is this a valid method?
Adam Nitenson, B.S.
Brain Genomics Lab
Massachusetts General Hospital
PS Here are the commands I used if that helps:
func2roi-sess -roidef lh_dACC -analysis RM_correct_error -anatlabel
lh.dACC -maskcontrast error_vs_correct -maskthresh 0.000000001 -masktail
pos -maskframe 5 -maskmap sig -sf
/autofs/space/ventzl_036/users/RespMon12C/subject_lists/caitlin_SZerrorcorrect.txt
-d /autofs/space/ventzl_036/users/RespMon12C/subjects
roisummary-sess -roidef lh_dACC -analysis RM_correct_error -sf
/autofs/space/ventzl_036/users/RespMon12C/subject_lists/caitlin_SZerrorcorrect.txt
-d /autofs/space/ventzl_036/users/RespMon12C/subjects -sumfile
/autofs/space/ventzl_036/users/RespMon12C/ROI_Analysis/lh_dACC
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